/*******************************************************************/
/***                                                             ***/
/***   Tokenizer.js - JavaScript String Tokenizer Function       ***/
/***                                                             ***/
/***   Version   : 0.2                                           ***/
/***   Date      : 01.05.2005                                    ***/
/***   Copyright : 2005 Adrian Zentner                           ***/
/***   Website   : http://www.adrian.zentner.name/               ***/
/***                                                             ***/
/***   This library is free software. It can be freely used as   ***/
/***   long as this this copyright notice is not removed.        ***/
/***                                                             ***/
/*******************************************************************/

String.prototype.tokenize = tokenize;

function popup (url, name, width, height, scrollbars) {
	window.open (url, name, "status=0,toolbar=0, location=0, menubar=0, directory=0,resizable=1, scrollbars=" + scrollbars+ ", height=" + height + ",width=" + width);
}



function tokenize() {

	var input             = "";
	var separator         = " ";
	var trim              = "";
	var ignoreEmptyTokens = true;

	try {
		String(this.toLowerCase());
	}
	catch(e) {
		window.alert("Tokenizer Usage: string myTokens[] = myString.tokenize(string separator, string trim, boolean ignoreEmptyTokens);");
		return;
	}

	if(typeof(this) != "undefined") {
		input = String(this);
	}

	if(typeof(tokenize.arguments[0]) != "undefined") {
		separator = String(tokenize.arguments[0]);
	}

	if(typeof(tokenize.arguments[1]) != "undefined") {
		trim = String(tokenize.arguments[1]);
	}

	if(typeof(tokenize.arguments[2]) != "undefined") {
		if(!tokenize.arguments[2]) {
			ignoreEmptyTokens = false;
		}
	}

	var array = input.split(separator);

	if(trim) {
		for(var i=0; i<array.length; i++) {
			while(array[i].slice(0, trim.length) == trim) {
				array[i] = array[i].slice(trim.length);
			}
			
			while(array[i].slice(array[i].length-trim.length) == trim) {
				array[i] = array[i].slice(0, array[i].length-trim.length);
			}
		}
	}

	var token = new Array();
	
	if(ignoreEmptyTokens) {
		for(var i=0; i<array.length; i++) {
			if(array[i] != "") {
				token.push(array[i]);
			}
		}
	}
	else {
		token = array;
	}

	return token;
}

function parseBoolean ($str) {
	if ($str == "false") {
		return false;
	}
	return true;
}